Improvement in water-wheels



E. B. SHATTU-CK -& I. STAHLMAN.

WATER-WHEEL.

'Patented Nov. 21,1876.

INVEIITUR:

I NI'IKED STATES PATENT OFFICE.

ELISHA B. SHATTUOK AND ISAAC STAHLMAN, OF MOUNT PLEASANT, MICH.

IMPROVEMENT IN WATER-WHEELS.

Specification forming part of Letters Patent No. 184,550, dated November21, 1876; application filed August 14, 1876.

To all whom it mag concern;

Be it known that we, ELISHA B. SHAT-TUOK, and ISAAC STAHLMAN, of MountPleasant, in the county of Isabella, and State of Michigan, haveinvented a new and Improved Water -Wheel, of which the following is aspecification In theaccompanying drawing, Figure 1 represents atop viewof our improved water-wheel with parts broken off on the line to w, toshow construction of wheel below, and Fig. 2 is a vertical centralsection of the same on line a: as, Fig. 1.

Similar letters of reference indicate corresponding parts.

Our invention relates to improvements in water-wheels by which increasedpower is obtained, the water freely discharged, and a larger percentageof the water-power utilized. s

The invention consists of a double wheel, in which the buckets of theupper wheel connect with an inner tube and spiral buckets around. theshaft, while the lower wheel connects with an outer cylinder or tube.The wheel is concaved or dishing, and provided with vent-holes at thetop to accelerate the discharge of the water.

In the drawing, A represents the buckets of the upper, and B thebuckets. of the lower, wheel section, which sections are both concavedor dishing to" inner and outer tubes or cylinder A and B. The buckets A,of the upper wheel section, are straight and nearly radial, andcommunicate with buckets O of the inner cylinderordraft-tube A. Thebuckets O are arranged spirally around theshaft of the wheel andextended to the lower end of the tube A, into the tail-race. The bucketsB, of the lower section, are curved and inclined to the exit cylinder ortube B, which forms the discharge for the water of the lower buckets.

The upper and lower sets of buckets are independent of each other inreceiving and discharging the water, and produce additional power withthe connecting interior buckets. Vent-holes D, in the top part of thewheel, admit'air to the interior buckets, and assist in driving therace-water from the discharge, giving additional vent to the wheel. Thejoint action of the three sets of buckets, together with theseparately-discharging drafttubes, has the effect of utilizing a largepercentage of the water-power, and ot' producing a wheel of increasedcapacity and power.

Having thus described our invention, we claim as new, and desire tosecure by Letters Patent 1. A water-wheel having an upper set ofbuckets, communicating with an interior spiral set of buckets, and alower tier of buckets, substantially in the manner and for the purposeset forth.

2. The combination of the two sets of buck ets and two draft-tubes, thelatter revolving with thewheel, as shown and described.

3. Awater-wheel havingan upper,a lower, and an interior spiral set ofbuckets, arranged around the shaft, and an inner and outer cylinder anddraft-tube, substantially as specified.

ELISHA B. SHATIUGK. ISAAC STAHLMAN. Witnesses:

H. H. GRAVES, GEORGE HOGAN.

